1310319400 has 48 divisors (see below), whose sum is σ = 3280844700. Its totient is φ = 483809280.

The previous prime is 1310319397. The next prime is 1310319403. The reversal of 1310319400 is 49130131.

It is an interprime number because it is at equal distance from previous prime (1310319397) and next prime (1310319403).

It can be written as a sum of positive squares in 6 ways, for example, as 407797636 + 902521764 = 20194^2 + 30042^2 .

It is not an unprimeable number, because it can be changed into a prime (1310319403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249385 + ... + 254584.

Almost surely, 2^1310319400 is an apocalyptic number.

1310319400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310319400 is an abundant number, since it is smaller than the sum of its proper divisors (1970525300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1310319400 is a wasteful number, since it uses less digits than its factorization.

1310319400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503998 (or 503989 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1310319400 is about 36198.3342158172. The cubic root of 1310319400 is about 1094.2731009636.

Adding to 1310319400 its reverse (49130131), we get a palindrome (1359449531).

The spelling of 1310319400 in words is "one billion, three hundred ten million, three hundred nineteen thousand, four hundred".